.s_lbtn {	
	BACKGROUND: url(../core/itembar.gif) no-repeat -50px center;
    opacity:0.45;
    filter: alpha(opacity=55);
}
.s_lbtn:hover { 
    opacity:1;
    filter: alpha(opacity=100);
}
.s_lkbtn {
    BACKGROUND: url(../core/itembar.gif) no-repeat -74px center;
    opacity:0.55;
    filter: alpha(opacity=55);
}
.s_lkbtn:hover { 
    opacity:1;
    filter: alpha(opacity=100);
}